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Updated: Feb 26, 2026
A Robust Discovery Platform for the Identification of Novel Mediators of Melanoma Metastasis
Published on: March 8, 2022
In-vitro study of the influence of octocrylene on a selected metastatic melanoma cell line
Tanja Prunk Zdravković1,2, Bogdan Zdravković2, Marko Zdravković2,3
1Department of Dermatovenerology, Celje General and Teaching Hospital, Celje, Slovenia.
Background:
Octocrylene (OCT) is one of the most widespread chemical UV filters used in sunscreens and cosmetic products. Despite the use of sunscreens and personal care products over decades, melanoma as the most serious and aggressive form of skin cancer is still a cause of concern. Hence the aim of this study was to investigate any potential influence of OCT on metabolic activity, cytotoxicity and ABCB5 mRNA expression in melanoma cells. The ABCB5 transmembrane protein was tested due to its well-known role in the initiation, invasion and metastatic spread of various cancers, including melanoma.
Methods:
Metastatic melanoma cell line WM-266-4 (ATCC) was incubated with selected concentrations of OCT and for different time intervals. The MTT and LDH assays to measure the cells' metabolic activity and cytotoxicity were used respectively. Target gene (ABCB5) expression was detected by quantitative real-time PCR (qRT-PCR), using TaqMan® chemistry.
Results:
Our results suggest decreased metastatic melanoma cells' metabolic activity, increased cytotoxicity and increased ABCB5 mRNA expression (P<0.05) with longer time of exposure to OCT as compared to control cells. Accordingly, we suspect that the surviving cells are more invasive and aggressive, which might explain their microscopically observed cannibalistic activity.
Conclusions:
With this study, we elucidate a new promising field for further research to contribute to etiology and prevention of melanoma.
Insights
Octocrylene (OCT), a common UV filter, may increase melanoma cell aggression and ABCB5 gene expression over time. This suggests potential risks associated with OCT exposure, warranting further investigation into melanoma etiology and prevention.
Area of Science:
- Dermatology
- Oncology
- Biochemistry
Background:
- Octocrylene (OCT) is a widely used UV filter in sunscreens and cosmetics.
- Melanoma remains a significant health concern despite widespread sunscreen use.
- The ABCB5 protein is implicated in cancer initiation, invasion, and metastasis.
Purpose of the Study:
- To investigate the effect of OCT on melanoma cell metabolic activity.
- To assess OCT's impact on melanoma cell cytotoxicity.
- To determine OCT's influence on ABCB5 mRNA expression in melanoma cells.
Main Methods:
- Utilized the WM-266-4 metastatic melanoma cell line.
- Applied MTT and LDH assays to measure metabolic activity and cytotoxicity.
- Quantified ABCB5 mRNA expression using quantitative real-time PCR (qRT-PCR).
Main Results:
- Decreased metabolic activity in melanoma cells with prolonged OCT exposure.
- Increased cytotoxicity observed in melanoma cells upon OCT treatment.
- Elevated ABCB5 mRNA expression in melanoma cells with extended OCT exposure (P<0.05).
Conclusions:
- Prolonged OCT exposure may enhance melanoma cell invasiveness and aggression.
- OCT's effects on melanoma cells suggest a potential role in cancer progression.
- This research opens new avenues for investigating melanoma etiology and prevention strategies.
